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Finding the Fourth Proportional to 18,193.94, 25,108 and 10,646.04

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Solution

The fourth proportional to 18,193.94, 25,108 and 10,646.04 is: 14,691.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,193.94 : 25,108 = 10,646.04 : x
  2. Step 2: Convert to fraction form
    18,193.94/25,108 = 10,646.04/x
  3. Step 3: Cross multiply
    18,193.94x = 25,108 × 10,646.04
  4. Step 4: Simplify right side
    18,193.94x = 267,300,772.32
  5. Step 5: Solve for x
    x = 267,300,772.32/18,193.94
  6. Step 6: Final answer
    x = 14,691.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.